Electro-medical apparatus



(No Model.) 2 Sheets-Sheet I.

- T. J. SMITH,

ELEGTRO MEDICAL APPARATUS. No. 403,492. Patented May 14, 1889.

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T. J. SMITH. ELBGTRO MEDIGAL APPARATUS. No. 403,492. Patented May 14,1889.

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L M ATTORNEY,

UNITED STATES PATENT OFFICE.

'IIIOMAS .I. SMITH, OF BROOKLYN, NE\V YORK, ASSIGNOR TO TIIE E. S.GREELEY & COMPANY, OF GONNEC'IICIIT.

ELECTRO-MEDICAL APPARATUS.

SPECIFICATION forming part of Letters Patent'No. 403,492, dated May 14,1889.

Application filed February 19, 1889. Serial No. 300,429. (No model.)

To to whom, it may concern:

Be it known that I, THOMAS J. SMITH, of Brooklyn, county of Kings, Stateof New York, a citizen of the State of New York, have in vented certainnew and useful Improvements in Electro-Medical Apparatus, of which thefollowing is a full, clear, and exact description, reference being hadto the accompanying drawings, forming part of this specification.

My invention relates to an apparatus for the generation and applicationof electro-magnetism; and my invention consists in the parts and devicesand their combinations hereinafter described, and as more particularlyand at length recited in the claims.

Figure l is a plan of an electro-medical apparatus containing myinvention. Fig. 2 is a similar view of the same, showing the parts indiifercnt relative positions to those exhibited in Fig. 1. Fig. 3 is aninverted plan of my improved sliding base. Fig. i is a vertical centralsection of the apparatus on the line as 00, Fig. 2, the cell being shownin full lines; and Fig. 5 is a front end elevation of the apparatus whenopen.

A is the galvanic cell or battery.

B is the inclosing-case of the apparatus. \Vithin the case I constructthe cell-chamber B by means of a partition, Z), extending laterally ofthe case near its forward end and reaching vertically from thecase-bottom toward the top to the height of the cell, as shown, and Ithen cover the upper end of this chamber with a lid or roof, Z), whichslides horizontally into the case-walls in ways Z2 pro vided therein.Apertures, as at U, are provided in the lid for the passage of thepolewires a a of the battery. I thus inclose the 'battery in a separateand distinct chamber within the apparatus-case, so that dust and otherextraneous matter are excluded from the battery, while access may bereadily had to said chamber and its battery by means of the sliding lid1). Furthermore, the case is, in the manner described, divided intothree compartments-11amely, the chamber B, closed by the lid 1), thecompartment 13 in the forward end of the case in front of the chamber B,and in which may be kept the detachable parts of the apparatus, such asthe current-applying wires or conductors and their handles, and thecompartment B in the upper part of the case, above the cell-chamber, andcommunicat-ing at its forward end with the chamber I3 \Vithin the casein the space or compartment B above the cell-chamber I arrange the baseor table 0, of insulating material, and I adapt the same to be capableof sliding or moving horizontally by fitting its side edges in ways I),provided in or upon the side walls, 5 of the case. Upon the forward endof the sliding base 0, and preferably on the under side thereof, I fixthe magnet or coil C, which may be done by means of a frame orstandards, c, as shown, the coil having the usual slidingcurrent-graduator cylinder, C upon it, as shown. IVhen the base 0 isslid into the case, it is stopped against the rear wall, 1), thereof,and the coil, with its graduaton cylinder 0 closed upon it, lies withinthe front part of the case, illustrated in broken lines in Fig. 2. IVhenthe base 0 is slid outward until the coil C is brought beyond the lineof the front edges of the side walls of the case, the movement of thebase is preferably stopped by a pin, 0, fixed in the said base,impinging upon a stop, 0 on the case-wall, as shown in Figs. 1 and Thestop a is preferably a disengageable One-as, for example, a leafspring,as shown-so that it may be manipulated to permit the pin 0 to escape orpass it, in order that the sliding base 0 may be wholly withdrawn fromits ways, whereby access may be had to the lid of the cell-chamber.

Upon the case-walls are contact-points d and d, to which the respectivepole-wires a and a lead from the battery-cell, as shown in Fig. 2, andupon the sliding base C are the contactpoints 0 and 0 preferably in theform of leafsprings, as shown, which are brought into contact with thepoints (Z and (1', respectively,

when the sliding base is slid outward to itslimit of such movement, asdescribed. This is plainly illustrated in Fig. 2. The points 01 and (Zare preferably on the side walls of the case below the line of thesliding base, and the points 0 and c" are therefore preferably on theunder side of the said base, as shown.

At e and e are shown the usual connecting or circuit wires leading fromthe respective battery-poles through the points 0 and c to themagnet-coil, and these wires are preferably fixed on the under side ofthe base 0.

D is the usual vibratory circuit-breaker carried by the base (3, andpreferably on the upper side thereof. At 6 are shown the customarysocket-terminals (numbered 1 2 3 in Fig. 1) of the current-wires fromthe magnet, and to which the circuit-wires for applying the current tothe person may be attached.

At 13 1s shown a gate, preferably arranged to swing vertically uponhinges about midway of the heightof the front of the case, and adaptedto close the upper part of the front end or wall of the case.

B is the top or lid of the case, hinged upon the top edge of the rearwall and adapted to close down over the chamber or compartment Boccupied by the sliding base and its attached parts, and desirably tofasten or clamp to the gate B when the latter is closed.

By means of the case constructed as described, with its lid 13 and gateB and the sl1d1ng base 0, carrying the described attached parts, when itis desired to put the battery in action for use, the sliding outward ofthe base 0 1n its described ways will accomplish this result, and thisresult cannot be accomplished wlthout opening the case and swingingdownward the gate B It will be noted that the graduator-cylinder C onthe magnet or coil can only be operated when the base has been slidoutward, as described. When the case is closed after the use of theapparatus, the shutting of the gate B operates to slide the base Cinwardly on its ways in the case, and thus to break contact at thepoints a 0 and a 0 and hence stop the working of the battery or cell A.The closing up of the case of the apparatus therefore acts automaticallyto stop the battery action, and the liability to leave the battery inaction after use and subsequent to shutting its inclosing-case, as isliable to occur 1n cases as now constructed, is wholly avoided, andeconomy in the battery is thus promoted.

E 1s a circuit-breaker or switch, which I mount upon the upper face ofthe sliding base 0 in the pole-wire leading from one of thecontact-points of the base to the coil, and preferably as shown in thewire 6. By means of this circuit-breaker the action of the battery maybe at any time stopped while the base is in its outwardly-extendedposition without the necessity of sliding said base backward in itsways.

The base may be given a desir. ble frictional seat in its ways by meansof a spring, 0 on its edge, as shown in Fig. 3.

What I claim as my invention, and desire to secure by Letters Patent,is-- 1. In an electro-medical apparatus, the combination of theinclosing-case containing the battery or cell and provided withcontactpoints (1 and d, an insulating-base, O, carrying a magneto-coil,C, and contact-points c and 0 in electrical connection therewith andadapted to slide in ways in said case and to project therefrom, withelectrical connection established with the battery through saidcontact-points, and a gate, 13*, adapted to close the side of the casethrough which said base projects, and in closing to swing to and impingeupon said base, substantially as and for the purpose set forth.

2. In an electro-medical apparatus, the com;

bination of the case B, containing the battery or cell A and having thecontact-points d and d on the case-walls, the ways 12 in said wallsabove said contact-points, the base 0, adapted to slide in said ways andto project beyond the case, the stop device 0 0 to limit the outwardmovement of said sliding base, the coil 0 and its graduat-or 0 carriedon the projected end of said base, the contact-points c and c on saidbase and in electrical connection with said coil and adapted to engagethe contact-points on the case when said base is slid outward, togetherwith the gate 13, adapted to close the case where the said base projectsand to swing to and impinge upon the projected end of said base inclosing, substantially as and for the purpose described.

3. In an electro-medical apparatus, the combination, with the walls ofthe inelosing-case, of the partition 1), extending laterally of theinterior of the ease and terminating Verti-- cally below the top of thecase, and the sliding cover 1), working in ways in the case-wall andclosing over the upper edge of said partition, together with the lid Bwhereby a chamber, B, is constituted in the case adapted to inclose andshelter the battery-cell, and a chamber at one side and above saidcell-chamher is constituted for the remaining operative and detachableparts of the apparatus, substantially as set forth.

4. In an electro-medioal apparatus, the sliding base 0, carrying themagneto-coil O and contact-points c and 0 adapted to engage anddisengage contact-points of the battery inclosed in the case in whichsaid base slides, in combination with a circuit breaker, E, placed in acircuit-wire between one of the contact-points on the base and themagnetocoil, substantially as and for the purpose set forth.

THOMAS J. SMITH.

Witnesses:

ARDEN S. FITCH, A. '1. Forms.

